Nioxin Density Defend Hair Booster Serum is designed to strengthen the hair fiber and protect hair cuticles. Its advanced formula helps improve hair resilience while supporting the appearance of fuller, denser hair. Hair looks smoother, stronger and more voluminous. Helps protect hair cuticles Improves hair strength and resilience Supports fuller-looking, denser hair HOW TO USE Apply to clean, damp hair. Distribute evenly on the scalp and lengths and massage gently. Do not rinse and style as usual. INGREDIENTS AQUA/WATER/EAU, PHENOXYETHANOL, BENZYL ALCOHOL, PEG-23M, ACETAMIDE MEA, ACRLATES/C10-30 ALKYL ACRYLAE CROSSPOLYMER, PEG-12 DIMETHICONE, TRIETHANOLAMINE, POLYSORBATE 80, POLYSORBATE 60, SODIUM BENZOATE, TOCOPHERYL, NICOTINATE, METHYL NICOTINATE, MENTHA ARVENSIS LEAF OIL, PARFUM/FRAGRANCE, SODUM CHLORIDE, PROPYLENE GLYCOL, SILICA, MENTHA PIPERITA (PEPPERMINT) OIL, PEG-30 DIPOLYHDROXYSTERATE, LIMONENE, LECITHIN, SERENOA SERRULATA, FRUIT EXTRACT, HUMULUS LUPULUS (HOPS) EXTRACT, CHONDRUS CRISPUS (CARRAGEENAN) EXTRACT, PRUNUS PERSICA (PEACH) JUICE, CENTALLA ASIATICA EXTRACT, CUCURBITA PEPO (PUMPKIN) SEED EXTRACT, DIOSCOREA VILLOSA (WILD YAM) ROOT EXTRACT, GLYCYRRHIZA GLABRA (LICORICE) ROOT EXTRACT, BHT, POTASSIUM SORBATE.